Irradiation induced defects in nanocrystalline Cu

B. Johannessen; P. Kluth; C. J. Glover; G. J. Foran; M. C. Ridgway

doi:10.1016/j.nimb.2005.06.063

Irradiation induced defects in nanocrystalline Cu

B. Johannessen^*, P. Kluth, C. J. Glover, G. J. Foran, M. C. Ridgway

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

4 Citations (Scopus)

Abstract

Cu nanocrystals were synthesized in a thin layer of amorphous silica (SiO₂) by ion implantation and thermal annealing. Subsequently the nanocrystals and a bulk Cu film standard were irradiated with high-energy Sn ions to induce structural disorder. We quantify the disorder by extended X-ray absorption fine structure (EXAFS) spectroscopy. Irradiation is found to increase the structural disorder in the nanocrystals, while the structural parameters of the irradiated film remain the same as those for the unirradiated crystalline standard. We explain this difference by the high regeneration rate in elemental bulk metals and the effect thereupon of a finite crystal size.

Original language	English
Pages (from-to)	276-280
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	238
Issue number	1-4
DOIs	https://doi.org/10.1016/j.nimb.2005.06.063
Publication status	Published - Aug 2005
Event	Synchrotron Radiation in Materials Science Proceedings of the 4th Conference on Synchrotron Radiation in Materials Science - Duration: 23 Aug 2004 → 25 Aug 2004

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title = "Irradiation induced defects in nanocrystalline Cu",

abstract = "Cu nanocrystals were synthesized in a thin layer of amorphous silica (SiO2) by ion implantation and thermal annealing. Subsequently the nanocrystals and a bulk Cu film standard were irradiated with high-energy Sn ions to induce structural disorder. We quantify the disorder by extended X-ray absorption fine structure (EXAFS) spectroscopy. Irradiation is found to increase the structural disorder in the nanocrystals, while the structural parameters of the irradiated film remain the same as those for the unirradiated crystalline standard. We explain this difference by the high regeneration rate in elemental bulk metals and the effect thereupon of a finite crystal size.",

keywords = "EXAFS, Ion implantation, Nanocrystals",

author = "B. Johannessen and P. Kluth and Glover, {C. J.} and Foran, {G. J.} and Ridgway, {M. C.}",

year = "2005",

month = aug,

doi = "10.1016/j.nimb.2005.06.063",

language = "English",

volume = "238",

pages = "276--280",

journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",

issn = "0168-583X",

publisher = "Elsevier B.V.",

number = "1-4",

note = "Synchrotron Radiation in Materials Science Proceedings of the 4th Conference on Synchrotron Radiation in Materials Science ; Conference date: 23-08-2004 Through 25-08-2004",

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TY - JOUR

T1 - Irradiation induced defects in nanocrystalline Cu

AU - Johannessen, B.

AU - Kluth, P.

AU - Glover, C. J.

AU - Foran, G. J.

AU - Ridgway, M. C.

PY - 2005/8

Y1 - 2005/8

N2 - Cu nanocrystals were synthesized in a thin layer of amorphous silica (SiO2) by ion implantation and thermal annealing. Subsequently the nanocrystals and a bulk Cu film standard were irradiated with high-energy Sn ions to induce structural disorder. We quantify the disorder by extended X-ray absorption fine structure (EXAFS) spectroscopy. Irradiation is found to increase the structural disorder in the nanocrystals, while the structural parameters of the irradiated film remain the same as those for the unirradiated crystalline standard. We explain this difference by the high regeneration rate in elemental bulk metals and the effect thereupon of a finite crystal size.

AB - Cu nanocrystals were synthesized in a thin layer of amorphous silica (SiO2) by ion implantation and thermal annealing. Subsequently the nanocrystals and a bulk Cu film standard were irradiated with high-energy Sn ions to induce structural disorder. We quantify the disorder by extended X-ray absorption fine structure (EXAFS) spectroscopy. Irradiation is found to increase the structural disorder in the nanocrystals, while the structural parameters of the irradiated film remain the same as those for the unirradiated crystalline standard. We explain this difference by the high regeneration rate in elemental bulk metals and the effect thereupon of a finite crystal size.

KW - EXAFS

KW - Ion implantation

KW - Nanocrystals

UR - http://www.scopus.com/inward/record.url?scp=25144465511&partnerID=8YFLogxK

U2 - 10.1016/j.nimb.2005.06.063

DO - 10.1016/j.nimb.2005.06.063

M3 - Conference article

SN - 0168-583X

VL - 238

SP - 276

EP - 280

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

IS - 1-4

T2 - Synchrotron Radiation in Materials Science Proceedings of the 4th Conference on Synchrotron Radiation in Materials Science

Y2 - 23 August 2004 through 25 August 2004

ER -

Irradiation induced defects in nanocrystalline Cu

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